Wheel.



J. S. STRAW R. W. DAVIES.

APPLICATION FILEDJAR. 16, 1908.

920,685. Patented may 4, 1909.

QQ( 'I l N :a v Il D hifi.

W/ TNE SSE N VEN TOHS A TTOHNEYS UNITED STATES lPATEN OFFICE.

JACOB S. STRAWN AND RODERICK W. DAVIES, OF AVONMORE, PENNSYLVANIA.

WHEEL.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed January 15, 1908. Serial No. 410,977.

To all whom it may concern.'

Be it known that we, JACOB S. STRAWN and Ronnnrox Y?. Dnvins, citizens oi' the United States, and residents oi Avonmore, in the county oi VVestmOrela-nd and State of Pennsylvania, have invented a new Y and Improved lllheel, oi which the following is a lull, clear, and exact description.

This invention is an improvement in wheels, relating primarily to a novel iorm oi' hub 'lor insuring perfect and economical lubrication, and has i'or an object the provision oit' a hub constructed with a counterbore, a lubricating chamber, an annular lubricating chamber connected with the lubricating chamber by a passage, a hardened bushing arranged between the annular' chamber and the counterbore, and a latch 'for engaging over the colla red or enlarged nortion oi' the axle located in the counterbore, holding the axle against longitudinal movement, the counterbore being at the inner end o'l` the hub, the lubricating chamber at the outer' end thereoi", and the annular lubricating chamber occupying an intermediate position, and itself and passage arranged. contiguous to the bore ol' the hub.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters oi' reference indicate corresponding parts in all the views.

Figure 1 is an inner Vface view oi a wheel embodying our improvements; Fig. 2 is a central section of the same 3 Fig. 3 is a vfragmentary plan oi the hub around the latch and Fig. 4 is cross-section through the hub substantially on the line 1 /l ol' Fig. 2, looking in the direction oi' the arrowfs.

"rife have shown our improvements applied to a wheel 5, as used on mining cars and comprising the hub o' having the counterbored portion 7, the lubricating chamber 8, andthe annular lubricating chamber Q connecting with the chamber 8 through the passages 10, the counterbore being i'ormed at the inner end ol' the hub, the lubricating chamber at its outer end, and the annular lubricating chamber occupying an intermediate position and itself arranged contiguous to the bore of the hub, as also the passages 10.

At the center oi the chamber 8 is a hole 11 for the introduction oi the lubricant; this location of the hole admitting of the chamber being iilled with a sufficient quantity of oil to amply supply the annular chamber 9,

through the passages 10, the said chamber not only serving the purpose oi a reservoir but also to arrest the flow ol' oil along the axle 12 and prevent its waste. Between the annular chamber 9 and the counterbore 7 is a hardened steel bushing 18, against which bears a collar 14, formed on the axle and Yfitting within the counterbore 7. This bushing insures a neat 'lit around this portion ol' the axle journal, which is especially desirable not only from the fact that the cast metal is prevented `l'rom wearing and the liie oi the wheel thereby prolonged, but also a substantially oil-tight joint is i'or a long time maintained, preventing a leal-, and a wabbling o1' the wheel.

At the inner i'ace ol' the hub two spaced lugs 15 are cast integral. therewith, between whicliis placed a latch 16 having an inwardlyprojecting finger engaging over the collar 14, operating to keep this collar pressed to the bushing 13 and hold the axle againstlongitudinal movement. The latch 1c is retained in place by constructing it With a T-head 17, as shown in Fig. 3, engaging back ol' the lugs 15, and also by a cotter pin 1S, passing through these lugs. he entire hub oi' the wheel, excepting the bushing 13, it will be observed, is made oi a single piece, which presents a very simple construction and one in which the lubricant will be prevented from oozing out at joints, as in the case ol a lubrieating hub of a composite nature.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

A wheel hub having the inner end counterbored and the outer end formed with a lubricating chamber having a hole i'or the introduction of the lubricant, an annular lubricating chamber near the inner end oi' the hub contiguous to the bore thereof and connected with the iirst mentioned chamber' by a passage also contiguous to said bore, and a hardened bushing wholly arranged in the bore of the hub between the annular chamber and the counterbore, said hub being otherwise formed as a single piece.

In testimony whereoiI we have signed our names to this specification in the presence ol two subscribing Witnesses.

JACOB S. STRAWN. RODERICK WT. DAVIES. Writnesses LEWIS L. FICHTHOON, CHESTER R. WILSON. 

